Composite biological coating agent and method for using the same in fresh keeping of blueberry
A film-coating agent, blueberry technology, applied in the direction of preservation of fruits and vegetables, protection of fruits/vegetables with a coating protective layer, application, etc., can solve the problems of low storage of fruits in ice temperature, achieve long preservation time, inhibit corruption, and promote production increase The effect of increasing income
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[0033] Example 1
[0034] (1) Preparation of chitosan composite biofilm solution: Take 10 liters of film preservative as an example, dissolve 100.0g of citric acid (Shanghai Jinjinle Industrial Co., Ltd.) in 10L of water, and add 10.0g of nano-SiOx (Zhoushan Mingri Nano Material Technology) Co., Ltd. product), ultrasonic 10min (scientz-ⅡD ultrasonic cell crusher, Ningbo Xinzhi Biological Technology Co., Ltd.), disperse uniformly, and then dissolve 300.0g chitosan (Jinan Haidebei Marine Biological Engineering Co., Ltd.) , Add 15.0g propylene glycol (Zhangjiagang Free Trade Zone Yexing Chemical Trade Co., Ltd.), 10.0g glycerin (Guangzhou Nanjia Chemical Co., Ltd.), 10.0g nisin (Beijing Newt Biotechnology Development Co., Ltd.), 5.0g lysozyme (Nanning Pangbo Biological Engineering Co., Ltd.), stir and mix well;
[0035] (2) Blueberry pretreatment: pick up blueberries quickly, ventilate and pre-cool, wind speed 10m / s, humidity 75%, time about 1h, select fresh blueberries with no traum...
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[0038] Example 2
[0039] (1) Preparation of chitosan composite biofilm solution: Take 5 liters of film preservative as an example, dissolve 40.0g of citric acid (Shanghai Jinjinle Industrial Co., Ltd.) in 5L of water, and add 4.0g of nano SiOx (Zhoushan Mingri Nano Material Technology) Co., Ltd. product), ultrasonic 10min (scientz-ⅡD ultrasonic cell crusher, Ningbo Xinzhi Biological Technology Co., Ltd.), uniformly dispersed, and then 100.0g chitosan (Jinan Haidebei Marine Biological Engineering Co., Ltd.) dissolved in it , Add 7.0g propylene glycol (Zhangjiagang Free Trade Zone Yexing Chemical Trading Co., Ltd.), 6.0g glycerin (Guangzhou Nanjia Chemical Co., Ltd.), 6.0g nisin (Beijing Newt Biotechnology Development Co., Ltd.), 2.0g lysozyme (Nanning Pangbo Biological Engineering Co., Ltd.), stirring and mixing;
[0040] (2) Blueberry pretreatment: pick up blueberries quickly, ventilate and pre-cool, wind speed 15m / s, humidity 85%, time about 2h, select blueberries with fresh qua...
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